Had they wanted to do a movie that ended the Dominion War it should've been a DS9 movie, TNG had nothing to do with the Dominion or the war. I do like how the E-E was kept on the sidelines, doing all the public relations stuff, kept away from the fighting more for morale back home than anything else--though it did seem pretty pointless to have such a large, well-armed ship doing milk runs (but a bit of propaganda is necessary from time to time).